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Twilight Pro Unlock APK

1.8 for Android

Urbandroid Team

The description of

Twilight Pro Unlock 1.8 APK

Are you having trouble falling asleep? Are your kids hyperactive when playing with the tablet before bed time?
Are you using your smart phone or tablet in the late evening? Twilight may be a solution for you!

WARNING: Android O does no allow the app to cover your notifications and lockscreen anymore. We have some workarounds like wallpaper filtering etc..

Recent research suggests that exposure to blue light before sleep may distort your natural (circadian) rhythm and cause inability to fall asleep.

The cause is the photoreceptor in your eyes, called Melanopsin. This receptor is sensitive to a narrow band of blue light in the 460-480nm range which may suppress Melatonin production - a hormone responsible for your healthy sleep-wake cycles.

In experimental scientific studies it has been shown an average person reading on a tablet or smart phone for a couple of hours before bed time may find their sleep delayed by about an hour.

The Twilight app makes your device screen adapt to the time of the day. It filters the blue spectrum on your phone or tablet after sunset and protects your eyes with a soft and pleasant red filter. The filter intensity is smoothly adjusted to the sun cycle based on your local sunset and sunrise times.

PRO features
- more than 2 predefined profiles
- adjustable transition time
- option to turn off Twilight service altogether during inactive times
- new features will often first appear as PRO

Thank you very much for your intention to support our development. This is a pro application for the Twilight app. Please install on top, do not uninstall Twilight first.

Please read the basics on circadian rhythm and the role of melatonin:

http://en.wikipedia.org/wiki/Melatonin
http://en.wikipedia.org/wiki/Melanopsin
http://en.wikipedia.org/wiki/Circadian_rhythms
http://en.wikipedia.org/wiki/Circadian_rhythm_disorder

Examples of related scientific research:

Amplitude Reduction and Phase Shifts of Melatonin, Cortisol and Other Circadian Rhythms after a Gradual Advance of Sleep and Light Exposure in Humans
Derk-Jan Dijk, Jeanne F. Duffy, Edward J. Silva, Theresa L. Shanahan, Diane B. Boivin, Charles A. Czeisler 2012

Exposure to Room Light before Bedtime Suppresses Melatonin Onset and Shortens Melatonin Duration in Humans
Joshua J. Gooley, Kyle Chamberlain, Kurt A. Smith, Sat Bir S. Khalsa, Shantha M. W. Rajaratnam, Eliza Van Reen, Jamie M. Zeitzer, Charles A. Czeisler, Steven W. 2011

Effect of Light on Human Circadian Physiology
Jeanne F. Duffy, Charles A. Czeisler 2009

Efficacy of a single sequence of intermittent bright light pulses for delaying circadian phase in humans
Claude Gronfier, Kenneth P. Wright, Richard E. Kronauer, Megan E. Jewett, Charles A. Czeisler 2009

Intrinsic period and light intensity determine the phase relationship between melatonin and sleep in humans
Kenneth P. Wright, Claude Gronfier, Jeanne F. Duffy, Charles A. Czeisler 2009

The Impact of Sleep Timing and Bright Light Exposure on Attentional Impairment during Night Work
Nayantara Santhi, Daniel Aeschbach, Todd S. Horowitz, Charles A. Czeisler 2008

Short-Wavelength Light Sensitivity of Circadian, Pupillary, and Visual Awareness in Humans Lacking an Outer Retina
Farhan H. Zaidi, Joseph T. Hull, Stuart N. Peirson, Katharina Wulff, Daniel Aeschbach & Co 2007

High sensitivity of the human circadian melatonin rhythm to resetting by short wavelength light.
Lockley SW, Brainard GC, Czeisler CA. 2003

Sensitivity of the human circadian pacemaker to nocturnal light: melatonin phase resetting and suppression
Jamie M Zeitzer, Derk-Jan Dijk, Richard E Kronauer, Emery N Brown, Charles A Czeisler 2000

Phase-shifting human circadian rhythms: influence of sleep timing, social contact and light exposure
J F Duffy, R E Kronauer, C A Czeisler 1996

Exposure to bright light and darkness to treat physiologic maladaptation to night work.
Czeisler CA..

Download Twilight Pro Unlock APK v1.8. Protect your healthy sleep. Twilight Pro Unlock is posted in Health & Fitness category and is developed by Urbandroid Team.
The average rating is 4.3 out of 5 stars on our website. You may also leave your review for Twilight Pro Unlock on our website so that our users may have a good idea about the app. If you want to know more about Twilight Pro Unlock then you may visit Urbandroid Team support center for more information. Average rating of 4.3 is calculated by taking account of ratings by 7566 users.

The app was rated:
  • 1 stars by 476 users
  • 2 stars by 228 users
  • 3 stars by 451 users
  • 4 stars by 1349 users
  • 5 stars by 5062 users

This app is downloaded minimum 100,000 times but the number of downloads might be as high as 500,000. Download Twilight Pro Unlock APK if you need a free app from the Health & Fitness category for your device but you will need Android 4.0 version or higher to install this app.
This app was posted on Sep 24, 2018 and is available since then on MI9.COM . The current version is 1.8 and is now downloaded more than 500,000 times from our platform. Download APK and open it using your favorite File manager and install by tapping on the file name.
If the installation does not start then you need to enable unknown sources from your Android settings. Some apps like: Twilight, Blue Light Filter - Night Mode, Eye Care, Moshi Twilight Sleep Stories .

What's New
adaptive icon, no waiting next time it starts

Category: Health & Fitness

Date published: Sep 24, 2018

Current version: 1.8

Get it on: Get Twilight Pro Unlock for Free on Google Play

Requires android: 4.0

Content rating: Everyone

Similar: Twilight Pro Unlock APK

Developer: Twilight Pro Unlock APK

Reviews: Twilight Pro Unlock APK

4.3
7,566 total
5 5,062
4 1,349
3 451
2 228
1 476